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The following sample was taken from a normally distributed population: 3, 4, 5, 5, 6, 6,...

The following sample was taken from a normally distributed population:

3, 4, 5, 5, 6, 6, 6, 7, 7, 9, 10, 11, 12, 12, 13, 13, 13, 14, 15

(a) Compute the 0.95 confidence interval on the population mean

(b) Compute the 0.90 confidence interval on the population standard deviation

Math   Statistics-And-Probability   
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